cross my heart (and hope to die)

US /krɔs maɪ hɑrt (ænd hoʊp tu daɪ)/
UK /krɔs maɪ hɑrt (ænd hoʊp tu daɪ)/
"cross my heart (and hope to die)" picture
1.

sumpah, aku bersumpah

used to emphasize that one is telling the truth or making a sincere promise

:
I promise I won't tell anyone, cross my heart.
Saya janji tidak akan beritahu sesiapa, sumpah.
He said he'd be there on time, cross his heart and hope to die.
Dia kata dia akan sampai tepat pada masanya, sumpah mati.